package A20180305;

public class TestTV {  
	  public static void main(String[] args) {
	    TV tv1 = new TV();
	    tv1.turnOn();
	    tv1.setChannel(30);
	    tv1.setVolume(3);
	    
	    TV tv2 = new TV();
	    tv2.turnOn();
	    tv2.channelUp();
	    tv2.channelUp();
	    tv2.volumeUp();
	    
	    System.out.println("tv1's channel is " + tv1.channel 
	      + " and volume level is " + tv1.volumeLevel);
	    System.out.println("tv2's channel is " + tv2.channel 
	      + " and volume level is " + tv2.volumeLevel);
	  }
	}

